"That's the point. You don't konw what's lurking around you. And now this guys face looks like it went through a meat grinder."
Ummmm, it is not hard to find out the types of animals that inhabit the area that you plan to hike. I have been hiking all over the country and never been attacked... and very rarely even approached.
By your logic, you should never go out on the streets in NYC or Detroit or Chicago etc.... cause you might get attacked by a mugger. I guarantee you it is far more likely that you will be attacked by another human than it is that you would be attacked by an animal.... well except for pit bulls... those bastards need to be put down.
you can at least try to reason with another person or pay them off. I'll take my chances with a mugger rather than a ML or bear any day of the week.